一般注記Shipping list no.: 91-494-P
"June 1991."
"The article was initially published in the Monthly labor review, May 1991, and is reprinted with additional tabular material and an explanatory note"--P. iii
Physical description for original version: v, 32 p. ; 28 cm
書誌注記Includes bibliographical references
原資料等に関する注記原資料の出版事項: Washington, D.C. : U.S. Dept. of Labor, Bureau of Labor Statistics, [1991]
ISBN: 016033876X (: )
SUPTDOC番号: L 2.3: 2382
GPO管理番号: 768-A-1